Ok, I know nothing about game pads, but was looking into getting one to play my computer games with. Do different games take different pads, do all games work with pads? Also, what pads are good to get (money isn't that much of an object).

Some of the games I have that I would want to play with a game pad are:
The Tombraider Series
The Jedi Knight Series
Asheron's Call (MMORPG, this might not work?)
Other FPS games (Doom, Duke Nukem, etc.)

Also, multiplayer features like on the Jedi Knight games, can I get two pads and have two people play?